private int read5Symbols(byte[] buf)
{
if (_eof)
{
return(0);
}
long value = 0;
int count = 0, b;
for (; ;)
{
b = _inputStream.ReadByte();
if (b < 0)
{
_eof = true;
break;
}
if (Lexer.IsEOL(b))
{
continue;
}
if (b == '~')
{
_eof = true;
break;
}
if (b == 'z')
{
buf[0] = 0;
buf[1] = 0;
buf[2] = 0;
buf[3] = 0;
return(4);
}
if (!('!' <= b && b <= 'u'))
{
_eof = true;
break;
}
count++;
value = value * 85 + (b - 33);
if (count == 5)
{
buf[0] = (byte)((value >> 24) & 0xFF);
buf[1] = (byte)((value >> 16) & 0xFF);
buf[2] = (byte)((value >> 8) & 0xFF);
buf[3] = (byte)(value & 0xFF);
return(4);
}
}
if (count == 2)
{
value = value * (85L * 85 * 85) + 0xFFFFFF;
}
else if (count == 3)
{
value = value * (85L * 85) + 0xFFFF;
}
else if (count == 4)
{
value = value * (85L) + 0xFF;
}
if (count >= 2)
{
buf[0] = (byte)((value >> 24) & 0xFF);
}
if (count >= 3)
{
buf[1] = (byte)((value >> 16) & 0xFF);
}
if (count >= 4)
{
buf[2] = (byte)((value >> 8) & 0xFF);
}
return(count - 1);
}